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0 downloadsThe hip joint is a large synovial socket and ball joint which is formed by the femoral head (the ball) and the acetabulum (the socket). The acetabulum is formed by pelvic bones; the ilium, the ischium and the pubis. The hip joint represents the articulation between the lower extremity and the axial skeleton and allows a high degree of mobility while being stable. The muscles of the hip consist of four main groups Gluteal group: the gluteus maximus, gluteus medius, gluteus minimus, and tensor fasciae latae Adductor group: the adductor brevis, adductor longus, adductor magnus, pectineus, and gracilis Iliopsoas group: the iliacus and psoas major Lateral rotator group: the externus and internus obturators, the piriformis, the superior and inferior gemelli, and the quadratus femoris Other hip muscles: the rectus femoris and the sartorius This 3D model was created from the file STS_036 The original CT examination can be reviewed at: The 3D bone model created from this scan can be reviewed at: This 3D model represents a case of high grade leiomyosarcoma implicating the left groin region, details can be reviewed at: